<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>横向圆角菜单</title>
    <style type="text/css">
        /*初始化*/
        * {
            margin: 0;
            padding: 0;
            font-size: 14px;
        }
        ul {
            list-style: none;
            height: 50px;
            padding-left: 30px;
            border-bottom:5px solid #f60 ;
        }
        li{
            float: left;
            margin-top: 20px;
        }
        li a {
            text-align: center;
            text-decoration: none;
            display: block;
            width: 120px;
            height: 30px;
            align:center;
            line-height: 30px;
            color: #000;
            background-image: url("images/btnBg.png");
        }

        li .on, a:hover{
            background-position:0 -30px ;
            color: #ffffff;
        }
    </style>
</head>
<body>
<div>
    <ul>
        <li><a class="on" href="#">首   页</a> </li>
        <li><a href="#">新闻资讯</a> </li>
        <li><a href="#">产品介绍</a> </li>
        <li><a href="#">客户案例</a> </li>
        <li><a href="#">联系我们</a> </li>
    </ul>
</div>
</body>
</html>